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14.1.6 RESOURCE B LOCK MODEL
Individual block models were established in Datamine for both zones using one
parent model as the origin; the model was not rotated.
Drillhole spacing varies, though the majority of the surface drilling is spaced at 50 to
100 m sections. The underground drilling on the East Zone is spaced at 15 to 20 m,
but only targeted the mineralization along the footwall. A block size of 20 m x 10 m x
20 m was selected in order to accommodate the nature of the mineralization and the
open pit potential.
Sub-celling of the block model on a 1 x 1 x 1 pattern allows the parent block to be
split once in each direction to fill the volume of the wireframes more accurately, and
thus estimate the tonnage in the resource more accurately.
Table 14.8 summarizes details of the parent block model.
Table 14.8 Parent Block Model
Origin Cell Size Number of Cells
X Origin Y Origin Z Origin XINC YINC ZINC NX NY NZ
1000 14500 300 20 10 20 165 150 85
The interpolations of the two zones were completed using the estimation methods:
NN, inverse distance squared (ID 2 ) and OK. The estimations were designed for
three passes. A minimum and maximum number of samples were required in each
pass, as well as a maximum number of samples from a borehole in order to satisfy
the estimation criteria. Table 14.9 and Table 14.10 summarizes the interpolation
criteria for the two zones.
Prophecy Platinum Corp. 14-8 1193460500-REP-R0001-02
Wellgreen Project Preliminary Economic Assessment,
Yukon, Canada